Over the years we have looked at a range of different options. Specifically, after the Canada First defence strategy was announced in 2006, the teams were established: the directorate of air requirements team to mature and advance the operational requirements, and the next-generation fighter capability office--my team--to analyze the options against those requirements. We've played our separate roles.
In that process we visited the range of manufacturers and the countries and government agencies involved in those countries for all of the options that we needed to study. We used that analysis, some of it at a classified level and some of it not at a classified level. We received cost information and capability information on a government-to-government basis. From that, we did our analyses. We were very conclusive in those analyses that only the F-35 met the mandatory requirements approved by the Department of National Defence.